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A186023
Eigentriangle of triangle A085478.
0
1, 1, 1, 2, 1, 1, 6, 4, 1, 1, 23, 15, 6, 1, 1, 106, 68, 28, 8, 1, 1, 567, 365, 145, 45, 10, 1, 1, 3434, 2215, 877, 262, 66, 12, 1, 1, 23137, 14917, 5936, 1750, 427, 91, 14, 1, 1, 171174, 110324, 43936, 13020, 3108, 648, 120, 16, 1, 1, 1376525, 887232, 353067, 104904, 25125, 5091, 933, 153, 18, 1, 1
OFFSET
0,4
COMMENTS
First column is A125273. Inverse of A186024. Rows sums are A125273(n)*(2-0^n).
LINKS
Paul Barry, Invariant number triangles, eigentriangles and Somos-4 sequences, arXiv preprint arXiv:1107.5490 [math.CO], 2011.
EXAMPLE
Triangle begins
1;
1, 1;
2, 1, 1;
6, 4, 1, 1;
23, 15, 6, 1, 1;
106, 68, 28, 8, 1, 1;
567, 365, 145, 45, 10, 1, 1;
3434, 2215, 877, 262, 66, 12, 1, 1;
23137, 14917, 5936, 1750, 427, 91, 14, 1, 1;
171174, 110324, 43936, 13020, 3108, 648, 120, 16, 1, 1;
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Paul Barry, Feb 10 2011
STATUS
approved